3Pcs HSS Step Drills Set Step Ddrills Conical Drills Hex Shank Cutting Coated for Stainless Steel Metal Wood Plastic

24 sizes individual drill bits in 3: This set includes three standard step drill bits that replace 28 individual drill bits, comes with one 4 to 12mm five-step bit, one 4 to 20mm nine-step bit, and one 3 to 12mm ten- step bit.
Avoiding the inconvenience of a tri-flat shank to ensure a firm grip.
Easy drilling: Two-fluted design provides faster, smoother cutting.
Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces.
Automatic center punch: Delivers an automatic, high-impact, spring-loaded strike when pressed against surface, adjustable cap regulates striking force.
Wide usages: Mark hole locations and start drill bits and screws, preventing wandering, heat treated alloy steel punch with sharp precision tip, corrosion-resistant brass body with non-slip knurled grip.
This compact set replaces 24 individual drill bits in 3pc Step Drill Bits which includes one 4-12mm, one 4-20mm, and one 3-12mm.
Two-fluted design can provide faster, smoother cutting.
Strong durability: HSS + titanium durability
Colour:Gold + Silver
Material:steel
Size:4-12mm/4-20mm/3-12mm
Package Contents:
3 x Metric Step Drill Bit
1 x Auto Center Punch
Note:
Before starting drilling and screwing, the Automatic Center Punch can be used to mark hole locations.
It delivers an automatic, high-impact, spring-loaded strike when pressed against wood, metal, and plastic surfaces.
An adjustable cap regulates striking force.
It features a heat-treated alloy steel punch with a sharp precision tip and a corrosion-resistant brass body with non-slip knurled grip.
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.